Messmer’s UV+ Natural Cedar delivers 100-200 sq ft per gallon on rough wood and 150-250 sq ft per gallon on smooth surfaces — coverage numbers that matter when you’re bidding deck jobs. The 50-60% solids content fills wood pores without using waxes or paraffin, which means the finish penetrates instead of sitting on top waiting to peel off after the first Montana winter.
This penetrating oil finish doesn’t form a surface film. That’s the difference between a deck that looks good for two seasons and one that keeps earning compliments year five. The application temperature range of 45°F to 95°F fits Montana’s construction season perfectly — you can start staining in May and keep going through September without waiting for perfect weather windows.
Coverage and Application Efficiency
The coverage spread — 100-200 sq ft per gallon on rough lumber, 150-250 on smooth — puts this product in line with other premium penetrating stains. With 50-60% solids content, you’re buying more stain and less solvent compared to cheaper options running 20-30% solids. Higher solids means better pore filling and fewer coats to achieve protection.
Surface temperature requirements of 50°F to 90°F give contractors reasonable working conditions through most of the Montana building season. The product reaches rain and traffic resistance in 24-48 hours, with full cure taking up to 2 weeks. Plan accordingly — don’t promise the homeowner a Memorial Day barbecue if you’re staining the Wednesday before.
Application technique matters: work in thin, even coats and remove any excess that hasn’t penetrated within 30-45 minutes. Skip the direct sunlight application on hot days — the stain needs time to penetrate, not flash-dry on the surface.
Temperature Windows and Montana Timing
The 45°F to 95°F air temperature range (50°F to 90°F surface temperature) makes this product workable from late April through early October in most Montana valleys. That’s a wider window than many film-forming products that need consistent 60°F+ temperatures.
Drying specs tell the real story: 4-24 hours to touch, 24-48 hours to rain/traffic resistance, up to 2 weeks for full cure. The variable touch-dry time depends on temperature and humidity — expect the full 24 hours in cool spring conditions, closer to 4 hours in July heat. Full cure at 2 weeks means scheduling matters for high-traffic commercial decks.
Working with Pressure-Treated Lumber
Messmer’s UV+ works with all modern pressure treatments — CCA, ACQ, and copper-azole lumber. New pressure-treated wood needs to weather for several weeks before application. That’s not the product being fussy — fresh treated lumber comes saturated with treatment chemicals that block stain penetration.
The penetrating formula avoids the adhesion failures common with film-forming stains on treated lumber. When treated wood shrinks and swells through freeze-thaw cycles, penetrating stains move with the wood. Film formers crack and peel.
Previous finishes matter: the product works over old UV+ coats after cleaning, but film-forming finishes must be stripped or sanded back to bare wood. No shortcuts here — trying to apply penetrating stain over old film finish wastes material and time.
Technical Specifications
| Specification | Value |
|---|---|
| Coverage (rough wood) | 100-200 sq ft/gallon |
| Coverage (smooth wood) | 150-250 sq ft/gallon |
| Solids content | 50-60% |
| Application temperature | 45°F to 95°F |
| Surface temperature | 50°F to 90°F |
| To touch | 4-24 hours |
| Rain/traffic resistance | 24-48 hours |
| Full cure | Up to 2 weeks |
| Flash point | 104°F |
| Cleanup | Mineral spirits, lacquer thinner, or MEK |
The product meets EPA VOC standards at less than 250 g/L, with 550 g/L versions available where regulations permit. Cleanup requires mineral spirits, lacquer thinner, or MEK — keep the appropriate solvents on hand.
What’s Included and What You’ll Need
Each purchase includes 1 gallon of Messmer’s UV+ Natural Cedar Stain. That’s it — plan for additional supplies.
Required items not included:
- Messmer’s Wood & Deck Cleaner for prep work
- Messmer’s Wood & Deck Brightener if the wood needs it
- Mineral spirits for cleanup
- Application tools (brushes, rollers, or sprayer)
The Bottom Line
Worth it for contractors dealing with Montana’s freeze-thaw cycles. The UV+ penetrates rather than sitting on top, eliminating the peeling problems common with film-forming stains. Trans-Oxide pigments provide UV protection while the Natural Cedar tint enhances wood grain without hiding it.
At 4.8 stars across 8 reviews, users praise the natural look and protection. The main complaints center on price and non-returnable status due to hazmat shipping — fair warnings for a premium product with serious chemistry.
For contractors who understand that high solids content and UV protection translate to callbacks avoided and reputations protected, Messmer’s UV+ Natural Cedar delivers. The wider temperature application window and compatibility with all pressure treatments make it practical for Montana’s short building season.
Frequently Asked Questions
Q: Can I apply Messmer’s UV+ over an existing stain?
Compatible with previous UV+ coats after proper cleaning. Film-forming finishes must be completely stripped or sanded to bare wood — no exceptions. The penetrating formula needs direct wood contact to work properly.
Q: How long should I wait before staining new pressure-treated lumber?
Allow new pressure-treated wood to weather for several weeks before application. Fresh treated lumber arrives saturated with treatment chemicals that block stain penetration. Test with water droplets — if they bead up, wait longer.
Q: What’s the real-world coverage I should expect?
Plan for 100-200 sq ft per gallon on rough-sawn cedar siding or decking, 150-250 sq ft on smooth-planed boards. First coat on weathered wood drinks more. Dense woods like treated pine may hit the lower coverage numbers.
Q: Does this product work in cold weather?
Application requires 45°F air temperature and 50°F surface temperature. That means waiting until mid-morning even on suitable days. Cold wood won’t absorb properly, and the stain won’t cure right.
Q: How does UV+ compare to clear sealers?
Clear finishes offer zero UV protection — the wood grays within months. UV+ includes UV-absorbing pigments that actually block damaging rays while the Natural Cedar tint enhances rather than hides wood grain.
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